I use an MPC too. You can get that feel in Logic it just takes more work. I do one or more of the following:
1) Use Ultrabeat to program patterns.
2) Import and start using MPC templates.
3) Get yourself an Akai MPD32. It has "Note Repeat" so you can program snare rolls and Hi Hats like an MPC.
Like syncsailo said, head over to Gearslutz.com for Hip Hop oriented questions.
Good Luck